| Dynamic Centrifuge
|
|
|
|
The residual humidity of the material before further processing in the densifier or the extruder is an essential element of the energy consumption of the regeneration plant. The Dynamic Centrifuge has proved to be the machine best suited to dry the material, which exits the tank with a humidity of up to 50%, to a residual humidity of 4 -5 % for LDPE or PP Film (even with a contant of about 20 % stretch) and ca 1 -2 % for rigid material such as HDPE or PP. The mechanical drying is superior to the thermal drying concerning energy consumption. A Test Report indicates the results achieved with the Costarelli Dynamic Centrifuge 850/10.
The Dynamic Centrifuge is designed according to the principles of a horizontal centrifuge and includes the combination washing and a subsequent drying of shredded plastic material. It is normally installed downstream to a Turbo-Wash and a Sink-Float-Tank.
 |
 |
| Dynamic Centrifuge with discharge of the sink-float tank, drained loading auger and discharge cyclone | Rotor with antii-wear plates and self cleaning counter rotating sieve basket (facotory-photo) |
The Dynamic Centrifuge is designed for special ruggedness (weight of the rotor about 2 t., total weight about 6 t.) and high reliability. The drying effect is caused by the high centrifugal force (1800 U/min), the impact of the rotor blades and the mutual friction of the rotating plastic material. At the same time paper and cellulose is separated from the plastic material and is eliminated with the water. This content can be up to 40% (e.g. at the treatment of industrial waste).
Video shows separation of
Cellulose of Rejects with Turbowash and Dynamic Centrifuge
The Dynamic Centrifuge is equipped with a slow counter rotating sieve-basket. The impact of the material causes a self-cleaning effect.
Design:
Technical Data:
| Installed power | 75 [kW] |
| Length/Width/Height | 3000 /1850 / 1830 [mm] |
| Production (dep. on material) | 800 [kg/h] Film, 1500 [kg/h] rigid material |
| Washing water | 78 [lit./min] |
| Cooling water | 23 [lit./min] |
| OCI GmbH |
| Baarerstrasse 95, CH 6301 Zug, Schweiz |
| GF: Hubert v. Navarini, Dipl. Ing. |
| Tel +41 81 3531685 / Fax +41 81 3535109 |
| navarini@navarini.com |
| Officine Meccaniche Costarelli s.r.l., Perugia (I) |
New: Complete recycling plant with 3rd generation concept
